Answer this question truthfully
### Question: When to seek urgent medical care when I have Bloody or tarry stools ?
### Response: Call your doctor immediately if you notice blood or changes in the color of your stool. Even if you think that hemorrhoids are causing the blood in your stool, your doctor should examine you to make sure that there is no other, more serious cause present. In children, a small amount of blood in the stool is usually not serious. The most common causes are constipation and milk allergies. However, it is still worth reporting to your doctor, even if no evaluation is needed.